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OpenAdvisories
Critical · 9.8 CVE-2020-37119 EUVD-2020-31047GHSA-qpw6-3qr8-fmwg

Nsauditor 3.2.1.0 - Buffer Overflow (SEH+ASLR bypass (3 bytes overwrite))

Published Feb 5, 2026 · Updated Jul 15, 2026 · Assigned by VulnCheck

Description

Nsauditor 3.0.28 and 3.2.1.0 contains a buffer overflow vulnerability in the DNS Lookup tool that allows attackers to execute arbitrary code by overwriting memory. Attackers can craft a malicious DNS query payload to trigger a three-byte overwrite, bypass ASLR, and execute shellcode through a carefully constructed exploit.

Affected products

VendorProductAffectedFixed
Nsasoft Nsauditor 3.2.1.0, 3.0.28 —

References